Mein Blau

Stay on top of your mobile usage with Mein Blau, the all-in-one app that tracks your data, minutes, and SMS in real time. Whether you're on a contract or prepaid plan, this free application puts complete visibility and control of your account right in your pocket.

For contract customers, Mein Blau delivers instant usage tracking so you always know exactly how much data volume, minutes, and SMS you've consumed. View your complete tariff details, book new options, and manage your plan without visiting a store. Access your last six bills and itemized statements instantly, plus a full five-year invoice history to track your annual spending. Update your customer data on the go—no waiting times, no bureaucracy. Planning to travel? Check roaming rates and pricing information for any country simply by selecting it in the app.

Prepaid users benefit from equally powerful features tailored to their needs. Monitor your consumption across all included units from your booked options, check your current credit balance, and top up instantly whenever you need it. Switch tariffs and add extra options without friction, and manage your customer information just as easily as contract customers do.

What sets this app apart is its unified approach—one clean interface handles everything your account needs. Real-time consumption displays keep you informed before surprise bills arrive. The ability to modify settings and tariffs directly from your phone eliminates the need for customer service calls or portal visits. Whether you're checking usage during a trip abroad or reviewing your spending patterns from the past five years, Mein Blau streamlines every aspect of account management.

The app is built on Telefónica Germany's trusted online services infrastructure. To get started, simply register through the app itself or via the blau.de website—registration is quick and required to unlock all features. Once set up, you'll enjoy seamless access to your account information anytime, anywhere.

Download Mein Blau today and transform how you manage your mobile plan. From contract flexibility to prepaid convenience, this essential app puts you in complete control of your data, minutes, SMS, and spending.